Respuesta:
x = 7
Explicación paso a paso:
x² - 49 = 0
x² = 0 + 49
x² = 49
x = √49
Comprobación:
7² - 49 = 0
49 - 49 = 0
0 = 0
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Respuesta:
x = 7
Explicación paso a paso:
x² - 49 = 0
x² = 0 + 49
x² = 49
x = √49
x = 7
Comprobación:
x² - 49 = 0
7² - 49 = 0
49 - 49 = 0
0 = 0